Muzzle brake



FIG. 1 is a top, front, left perspective view of a muzzle brake showingmy new design;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a top view thereof.

The uneven-length broken line within the shaded area in FIGS. 1 and 3-6correspond to an unclaimed feature. The broken lines immediatelyadjacent to the shaded area represent unclaimed boundaries of theclaimed design. The even-length broken lines showing the remainder ofthe muzzle brake are for environmental purposes only and form no part ofthe claimed design.

CLAIM The ornamental design for a muzzle brake, as shown and described.